Briefly explain: "Contact resistance becomes significant for semiconductor
devices as the size of the device decreases."
Contact resistance refers to the resistance that occurs at the interface between two materials when they come into contact. In the case of semiconductor devices, such as transistors or integrated circuits, as the size of the device decreases, the area of contact between different materials also decreases. This reduction in contact area leads to an increase in contact resistance.
When contact resistance becomes significant, it can negatively impact the performance of the semiconductor device. It can cause voltage drops, power loss, and heat generation at the contact points, affecting the overall efficiency and functionality of the device. Therefore, it is crucial to consider contact resistance and minimize its effects, especially in smaller semiconductor devices where it becomes more prominent.